Lord of the Rings/Harry Potter: The world is changed. Much that once was has been forgotten through the passage of time. Not, however, forgotten by all. In the growing darkness, a weapon from time immemorial is rediscovered, and only those from the distant past can provide the aid needed in destroying the weapon before the world is swallowed by shadow.
Spoilers: Harry Potter (books 1-5), Lord of the Rings, The Silmarillion, The Hobbit, The Unfinished Tales.

Prologue
Chapter One - The Shadows of the Past
Chapter Two - The Gathering of the Clouds
Chapter Three - A Warm Welcome
Chapter Four - Many Meetings *